Question

The area of a rectangular plot is 340 m- and its breadth is 17m.find the cost of
surrounding the plot with a fence at *5.70 per metre
​

Answer 1

Area = 340 m²

Breadth = 17 m

Area = Length × Breadth

Length = Area ÷ Breadth

Length = 340 ÷ 17 = 20 m

Then perimeter = 2(length + Breadth)

= 2(20+17) = 2 × 37 = 74 m

And cost of fencing 1 metre = 5.70

Cost of fencing 74 metres = 74 × 5.70 =₹421.80

The required cost is ₹421.80.